Imaginary Picture of HD 63765 b

Display orbital revolution of HD 63765 b around the hoststar HD 63765
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Exoplanet Name : HD 63765 b
Alternate Name :
Status : Confirmed
Radius (Rjup / Re): 0.9078 (Rjup) 10.1759 (Rearth)
Mass (Mjup / Me): 0.6400 (Mjup) 203.4803 (Mearth)
Semi Major Axis / Orbital Distance Calculated 0.9490 (AU) 0.9490 (AU Est.)
Eccentricity : 0.2400
Orbital Period(Yrs) 0.9801
Orbital Period(Observed/Estimated) 358.00 (Days Obs.) 363.06 (Days Est.)
Surface Gravity (G Earth) 1.9651
Star Radiation at Atmospheric Boundary: 735.0 (W/m2)
Measured Temperature (K) 0.0 (K)
Blackbody T 0.1(K) 232.4 (K)
Blackbody T 0.3(K) 218.2 (K)
Blackbody T 0.7(K) 176.6 (K)
Tidally Locked Blackbody T 0.1(K) 276.4 (K)
Tidally Locked Blackbody T 0.3(K) 259.5 (K)
Size Class: Jupiter-size
Mass Class:
Detection Type : Radial Velocity
Mass Detection :
Radius Detection :
Habitability by Solar Eq. Astronomical Unit: Habitable
Habitability by Kopparapu: Not habitable
Star Name : HD 63765
Alternate Name :
Star Distance(LY) : 105.6
Stellar Radius(Rsun) : 0.8 (Rsun Estimated)
Stellar Mass(Msun) : 0.9 (Msun Measured) 0.9 (Msun Estimated)
Star Age : 4.8 (GY)
Temperature : 5432 (K)
Spectral type : G9V
UV portion[%]: 6.6
Visible portion[%]: 42.7
IR portion[%]: 50.7
Metalicity : -0.2
Absolute Magnitude: 5.5
Apparent Magnitude: 8.1
Right Ascension(RA) 116.9572
Declination (DEC) -54.2642
Hubble Space Telescope Guide Star Catalog (GSC) ID
Discovered by
Discovery Paper - Authors 0
Discovery Paper - Title
Discovery Paper - Journal 0
Discovery Paper - URL 0
SIMBAD LINK http://simbad.u-strasbg.fr/simbad/sim-basic?Ident=HD+63765+&submit=SIMBAD+search
Open Exoplanet Database Link http://www.openexoplanetcatalogue.com/planet/HD%2063765%20b/
HD 63765 b
HD 63765 b

  • HD 63765 b is an exoplanet orbiting the star HD 63765, located about 105.6 light-years (32.4 pc) away from Solar System. Its discovery was publicly announced on 2009.
  • The host star HD 63765 has apparent magnitude of 8.1, with absolute magnitude of 5.5.
  • It is 0.9 times more massive and 0.8 times bigger compared with our Sun. The surface temperature is 5432 with its spectral types of G9V
  • In this planetary system, the extrasolar planet HD 63765 b orbits around the star HD 63765 every 358.0 days with its orbital distance of 0.95 AU ( 141968379.3 km)
  • (Projected orbit of HD 63765 b around its host star HD 63765)


  • The Star HD 63765 's habitable zone is located at the following distance
  • Inner Boundary (the orbital distance at Venus's Equivalent Radiation ) : 0.503 AU ( 75294811.6 km)
  • Earth Boundary (the orbital distance at Earth's Equivalent Radiation) : 0.696 AU ( 104077106.5 km)
  • Outer Boundary (the orbital distance at Mars's Equivalent Radiation) : 1.060 AU ( 158590478.1 km)
  • Snow Line (the orbital distance at Snow Line Equivalent Radiation) : 1.560 AU ( 233372835.9 km)
  • Radiation at Planetary Boundary of HD 63765 b : 735.00 W/m2

    (Habitable zone calculated based on SEAU(Solar Equivalent Astronomical Unit) around the star HD 63765)



  • Kopparapu Recent Venus for Star HD 63765 distance : 0.532 AU
  • Kopparapu Runaway Greenhouse for Earth-sized planet for Star HD 63765 distance : 0.674 AU
  • Kopparapu Runaway Greenhouse for Super-Earth-sized planet for Star HD 63765 distance : 0.651 AU
  • Kopparapu Runaway Greenhouse for Mars-sized planet for Star HD 63765 distance : 0.714 AU
  • Kopparapu Outer Boundary for Maximum Greenhouse for Star HD 63765 distance : 1.203 AU
  • Kopparapu Outer Boundary for Early Mars for Star HD 63765 distance : 1.268 AU

    (Habitable zone calculated based on Kopparapu et al.(2013) around the star HD 63765)



  • Original Kopparapu Recent Venus for Star HD 63765 distance : 0.530 AU
  • Original Kopparapu Runaway Greenhouse for Star HD 63765 distance : 0.694 AU
  • Original Kopparapu Moist Greenhouse for Star HD 63765 distance : 0.701 AU
  • Original Kopparapu Outer Boundary for Maximum Greenhouse for Star HD 63765 distance : 1.223 AU
  • Original Kopparapu Outer Boundary for Early Mars for Star HD 63765 distance : 1.272 AU

    (Habitable zone calculated based on Kopparapu et al.(Original) around the star HD 63765)



    (Position in Stellar Map of star HD 63765 and its Exoplanet HD 63765 b)



    (Zoomed position in Stellar Map of star HD 63765 and its Exoplanet HD 63765 b (zoom level 3))

    (Synthetic Spectrum of star HD 63765*)
    *Yamashiki YA et al. 2019 ApJ 881 114
    MUSCLES Paper I - France et al. 2016 ApJ 820 89
    MUSCLES Paper II- Youngblood et al. 2016 ApJ 824 101
    MUSCLES Paper III- Loyd et al. 2016 ApJ 824 102